Harrow.



0. LINDQUIST. HARBOW. APPLICATION FILED mm: 2'0, 1912. 1,065,536, Patented June 24,1913.

2 SHEETS-SHEET 1.

,1? J6 I E 45 Fig 1 40 u WITNESSES: ,26 2 3 26 INVENTOR .9

O. LINDQUIST.

HARROW.

APPLICATION FILED JUNE 20,1912.

Patented June 24, 1913.

2 SHEETS-SHEET 2.

WI T/VESSES:

. the followingis a specification. My invention relates to barrows, and com UNITED STATES PA'rENroF no OSCAR LIN DQUIST, OF EVERETT, WASHINGTON.

BARB/OW.

Specification of Letters Patent. Patented June 24 1913 Application nia June 20, 1912 Serial No. 704,841.

To all whom it may concern I Be itknown that I, OsoAn' LIivn UIs'r, a citizen of the United States, residing. at Everetflin the county of Snohognish, State "of Washington, have invented a new and:

useful Improvement in Harrows, of which prises the novel parts and combinations of parts which will be hereinafter deseribed and particularly pointed out in the clairns.

Whilet-he object of myinvention 1s,1 n general, to provide "an irnprove'xit and snper'ior apparatus, a'specific object-is to employ as the pulverizing or harrowing elements, endless belts which extend trans.-

verse'l y of the path of'lprogress of the har= ro'w,.and which are actuated by the forward:

movement of the harrow' to move about their supporting axes-,- or transversely of the.

' plurality of ,such bel ts and have-different -ing and lowering the framecarrying the employ two beltsturn in differentv directions.

In the accompanying drawings 1' have shown myinvention in'the form whichis now preferred by me. V In the drawings Figure 1' is a side elevation of my device. Fig." 2 is a rear elevation thereof. Fig. 3 is a plan view. Fig. 4 is a side elevation of thenieans for raisharrow elements. Fig. 5 is a plan view of the auxiliary or adjusting frame that sup- Fig. 6 is plan ports the harrow elements. view of one of the belt drums. Fig. 7 is side elevation of bevel gears connected to the wheels and driving shafts. Fig. 8 is side elevation of the bevel gears and worm gear that operate the beltdrumsn Fig. 9

is end view of a belt drum showing the worm gear by which it is driven. Fig. 10 is end view of a belt drum showing belt with barrow teeth, and also sectional View of trough on line BB of Fig. 12. Fig. 11 is side view of a belt drum, the lower half be ing in section on its center line.,' Fig. 12 is a bottom plan view of the belt guide showing belt or chain entering its flared end.

F 1g. 13 is a cross section of the belt guide on line A-A of Fig. 12.

In carrying out my invention I prefer to arrowing belts or chains, one

war of the supporting and driving wheels.

These belts are herein shown as composedment with the soil and constitute the active agents in the harrowing'process. The links are provided with holes adapted to engage sprocket teeth 42'carried by the belt drums 20, .to insure non-slipping. The shafts 41 aft direction, and are close e'nough to the ground, when in use, to permit the teeth on the lviwer run of the belts to. engage the ground; The belts are mounted in an auxiliary or adjusting frame which is capable of being. raised to. clear the teeth from. the ground, or of being lowered to place them in working position. A frame of this character isshown separately in Fig. 5. This consists of bars 32 to 39 inclusive, and it is mounted to: slide. vertically and be held against horizontal movement by vertical posts, as 23, 25, $6, and27, connected with the main frame. The adjustable frame is- :corttrol'led in position by a hand operated lever 400,- which is pivoted upon the main frame and has, connected therewith an arm 402 which is-conne'cted by link 403 with the adju'stabie frame. A catch mounted on the lever 400 is adapted to engage notches in a segment 4.04 and is controlled byhand' lever 401, so that the frame may be secured at 1 any elevation where adjusted.

or shaft of one chain drum of each set is The axis extend in direction parallel with the pathof progress of the harrow, or a fore-andsame being placed on one side of the machine for one belt and upon the other side The threads upon the' for the other belt. shaft 18 cover asuflicient'length thereof to require no other provision to accommodate.

for the adjustment in height ofvthe belt carrying frame.

The elements of which the belts or chains are composed have bases of some .width whereby they maybe-held againshrbcking 5Q are provided *to steady the'frame and facilitate steering.. I

over or twisting under the strain dueto the engagement-of their. teeth with the ground.

The-bases of the belt section's enter a guide 40 which is shap'ed -to form a IT-shaped,

groove or channel, the open side being downward. This 1 guide or {channelextends be- .tween'the two drums l of each belt, in position to receive-the lower runof vthe belt. Its receiving end isfiared as ;shown in Fig."

12, wliereby entrance is" facilitated; One or more front supporting and-guiding wheels 1. Ina harrow, m-combination, an end 1 less belt provided -with projecting teeth,-

meansfor moving said belt-transversely of the ath of movement of theharrow, and a fixe guide for the lower run of said belt adapted to. support it against the twisting action vcaused by the engagement of the teethiwith the ground. Y

V mounted on the main frame-to be adjusted 2. In a harrow, in combination, anend less belt provided with projecting teeth, means for moving-said belt transversely of the path of movement of the harrow, and a fixed guide for'the'lower' runj-of'said belt' adapted to support it againstthe twisting action caused by the engagementof the teeth with the ground, and means for raismg mechanism.

3. In,a harrow,,in combination, a mainf frame, drive and supporting-wheelsmount- .ed on said main frame, an auxiliary frame up-and down, an e'ndl'essbelt mounted on said auxiliary frame to travel in directions transversely of the path of movement of the I claim as my inventio1 rv l ing and-lowering said belt and its supporb' harrow, said beit having teeth projectingq and adapted to engage the ground, and a guide carried by the auxiliary frame and engaging the lowerrun of said .belt to's'upport it' against the rocking action caused o. 4. In a barrow, in combination, an end-- by their engagement withthe ground. f' I less beltv having outwardly projecting teeth i which have a rigid.base-extendingtrans-- vcrsely; of the "belt, .means for supporting and traversing s'aid -belt-in a direction trans-' Vvers'ely of thepath of progress of the har- (row, and a gu ding su'pp'ortF-for' the lower- :run of said belt having-a T-shaped groove,

receivingisaid 'lower 'r un of thebeltji d e base' -oftheteeth'; I a,

a pair of-driving and supporting wheels journaled in %aid frame,-an .auxiliarylframe J mounted upon the "main frame to be adjustable vertically, ail-"endless belt mounted upon theauxiliary frame to travel transv versely of the path of progress of'the harrow, teeth projecting "from the belt, a guide carried by said'frameand embracingthe lower run of s'aidpbelt'to preventjits rocking 65 because "of-engagement of theljteeth 'with the ground, aisha ft journaled jonjthe main frame andextending in forefanjd aft diree- .v tion, bevel gears connecting' said shaftwith the drive wheelsfa vertical shaft connected with ure fore and-fa ft shaftlby bevel gears, and driving connection'ofgsaid, ,yertieal shaft v Copies'of this patent may be obtained for five cents each, by addresing the Commissioner-of Patents,

1 Washington, D. C. l

- I 55 5. 11 1 11 harrow, in combination, a frame, 

